ADMINISTRATION OF ACADEMIC PROGRAMMES AS A FACTOR OF UNIVERSITY MODERNIZATION by Andrey P. Klemeshev, Irina Yu. Kuksa

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Incommensurable matter-wave jets in quasi-1D geometry by Tadej Mežnaršič, Rok Žitko, Katja Gosar, Jure Pirman, Katja Arh, Matevž Jug, Erik Zupanič, Peter Jeglič

“…Abstract Bose-Einstein condensates subjected to modulation of the interaction between atoms exhibit the emergence of density waves and matter-wave jets with a velocity proportional to the square root of the modulation frequency. …”
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Mechanical Electrical Coupling Modeling and Fault Characteristic of the Main Driving System of the Annealing Kiln by Kangqu Zhou, Lei Lei, Xueming Wu, Wennan Xie, Zhiqun Kan

“…The results show that when the fault occurs， the fault feature is to take the fault feature frequency of the shaft and gear where the fault occurs as the modulation signal， which produces the phenomenon of amplitude modulation and frequency modulation for the side frequency near the dominant frequency of each component， and also modulates the electrical signal. …”
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Research on the system error performance of coherent orthogonal frequency division multiplexing system with M-distribution in satellite-to-ground laser communication by Yi WANG, Yaping WANG

“…In order to alleviate the influence of atmospheric turbulence on the performance of satellite-to-ground laser communication system,based on the M-distribution atmospheric channel model,a multi-carrier coherent orthogonal frequency division multiplexing (OFDM) modulation system was proposed for uplink and downlink in the satellite-to-ground laser communication.The closed-form expression of bit error rate (BER) of coherent OFDM modulation system was derived.The relationship between the zenith angle,receiving aperture,signal-to-noise ratio (SNR),optimal beam divergence angle,and optimal transmission radius and the BER were studied under weak,and strong atmosphere turbulence,and compared with binary coherent differential phase shift keying (DPSK) modulation.Both the theory and the simulation results show that compared with coherent DPSK modulation,the bit error performance of the coherent OFDM modulation system in the satellite-to-ground laser communication system is better.…”
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Evaluation of the Application Effect of Virtual Simulation Technology in Rural Garden Landscape Design by Yuping Tang, Yang Xuan, Xiaoyue Zhu

“…Finally, this paper explores the influence of lens spacing and field of view on the modulation image of the target surface and the characteristics of projected intensity attenuation after modulation and designs a modulation model that optimizes attenuation. …”
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Mechanisms of How Random Input Controls Bursting Gene Expression by Sijia Xiao, Yan Wang, Zhigang Wang, Haohua Wang

“…To adapt the fluctuation of the extracellular environment, genes have many strategies for augmenting their survival probability, frequency modulation, and amplitude modulation. However, it is unclear how genes utilize the stochasticity of signals to regulate gene expression and which strategy will be chosen to maximize cellular function. …”
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Detailed Photoisomerization Dynamics of a Green Fluorescent Protein Chromophore Based Molecular Switch by Chen-Wei Jiang, Ai-Ping Fang, Di Zhao, Hong-Rong Li, Rui-Hua Xie, Fu-Li Li

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M-APSK phase detection algorithm and parallel carrier synchronization method by Hao HUAN, Kexue REN

“…In order to realize the precise phase correction of high order modulation in M-APSK modem, the Q-power non-data aided phase detection method recommended by DVB-S2 standard for 16APSK and 32APSK was extended to 64APSK, 128APSK and 256APSK.An improved algorithm was proposed to solve the problem of unstable loop operation when the proportion of constellation points used for phase detection in high-order modulation was low.By using threshold judgment on the amplitude of the received symbol after power normalization, phase detection was performed only when the amplitude was higher than the threshold, and the filter state and phase compensation value were not changed when the amplitude was lower than the threshold, so as to improve the phase detection effectiveness and reliability of constellation points and reduce the lock threshold.Aiming at the problem that the symbol rate of high-speed data transmission was very high but the working clock frequency of the processor was relatively low, a parallel carrier synchronization method for M-APSK was proposed, which could meet the needs of the receiver’s working clock.Compared with the traditional constant coding and modulation (CCM) carrier synchronization loop, the parallel method could also be applied to the frequency tracking of variable coding and modulation (VCM) system.…”
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DISCRETENESS ERRORS OF FREQUENCY LEVEL GAUGES AND METHODS OF THEIR MINIMIZATION by V. B. Goncharov, V. D. Ivchenko

“…Methods of reducing the influence of discreteness errors in a frequency modulated (FM) transmitters (adaptive voltage control modulation, the introduction of an additional slow modulation of the carrier frequency, the spectral analysis method) are presented.…”
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Multimodal data-based longitudinal prognostic model for predicting atrial fibrillation recurrence after catheter ablation in patients with patent foramen ovale and paroxysmal atria... by Shoupeng Duan, Xujun Li, Jun Wang, Yuhong Wang, Tianyou Xu, Fuding Guo, Yijun Wang, Lingpeng Song, Zeyan Li, Xiaomeng Yang, Xiaoyu Shi, Hengyang Liu, Liping Zhou, Yueyi Wang, Hong Jiang, Lilei Yu

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OTFS technology research and prospect by Hang LONG, Sen WANG, Linfei XU, Yinhua JIA, Lu DAI

“…Recently, a new multi-carrier modulation technique termed orthogonal time frequency space (OTFS) was proposed.In the OTFS modulation, the data symbols are modulated at the delay-Doppler plane and spread on all the time-frequency resource elements with the inverse symplectic finite Fourier transform.Compared with the conventional orthogonal frequency division multiplexing (OFDM) technique, the OTFS modulation performs better in the time-varying and frequency-selective channel.The state of art of OTFS was reviewed and summarized.Simulation results were presented to demonstrate the performance advantage of OTFS over the conventional OFDM.The remainder problems of multi-accessing, channel estimation and linear equalization in OTFS was given.The application of OTFS signal in joint Radar and communication system was also analyzed.…”
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A Jointly Optimized Variable M-QAM and Power Allocation Scheme for Image Transmission by Mohamed El-Tarhuni, Mohamed Hassan, Akram Bin Sediq

“…Analytical and simulation results show that the proposed scheme with jointly optimized bit power and variable modulation level provides an improvement in PSNR of about 10 to 20 dB over fixed power fixed modulation (16-QAM). …”
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Optimization Design of Concentric Magnetic Gear based on Genetic Algorithm Toolbox of Matlab by Jing Libing, Gao Qixing, Liu Lin, Li Hao, Su Jianhua

“…On the basis of concentric magnetic gear structure,the modulation magnet ring is improved,the silicon steel is added on the inside of the modulation magnet ring to constitute a mechanical bridge. …”
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Basic Characteristics of IEC Flickermeter Processing by Jarosław Majchrzak, Grzegorz Wiczyński

“…With the use of standard test signals, the characteristics of flickermeter were determined for the case of amplitude modulation of input signal, frequency modulation of input signal, and for input signal with interharmonic component. …”
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On Cauchy–Pompeiu’s Operator in Octant Ring by Hasan Baddour, Anas Kar

“…In this study, we have determined Cauchy–Pompeiu representation formula in octant unit ring R4 by modulation the main Cauchy–Pompeiu representation; this modulation was obtained by applying the parqueting-reflection method. …”
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Distribution of energy in propagation for ocean extreme wave generation in hydrodynamics laboratory by D. Fadhiliani, M. Ikhwan, M. Ramli, S. Rizal, M. Syafwan

“…During their propagation, the generated waves exhibit modulation instability and phase singularity phenomena. …”
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Fibromyalgia: do I tackle you with pharmacological treatments? by Serge Perrot

“…Low-dose naltrexone and ketamine are gaining attention due their action on neuroinflammation and depression modulation, but treatment protocols have not been validated. …”
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Shifting and Variational Properties for Fourier-Feynman Transform and Convolution by Byoung Soo Kim

“…Shifting, scaling, modulation, and variational properties for Fourier-Feynman transform of functionals in a Banach algebra S are given. …”
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Spectrum Sensing in Very Low SNR Environment Using Multi-Scale Temporal Correlation Perception with Residual Attention by Song Hong, Weiqiang Xu

“…Furthermore, MSTC-PANet, which has been trained using digital modulation techniques, also demonstrates applicability to analog modulation.…”
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Optimal Packet Length for Free-Space Optical Communications with Average SNR Feedback Channel by Ghassan Alnwaimi, Hatem Boujemaa, Kamran Arshad

“…For each ASNR, we also choose the optimal modulation and coding scheme (MCS) and optimal packet length to maximize the throughput. …”
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